Why do you look up the title?
There should be no need to look up the event title in the events table.
Modify this set field step: Set field [contact_Event::RSVP ; "Yes"] to be:
Set field [contact_Event::RSVP ; "*"]
oh that's so bleeding obvious - d'oh
i captured the title in early development to ensure I had the 'right' event as a header for the report - agree that's no longer necessary.
thanks again Phil